华北农学报 ›› 2023, Vol. 38 ›› Issue (S1): 95-101. doi: 10.7668/hbnxb.20193245

所属专题: 小麦 栽培生理

• 耕作栽培·生理生化 • 上一篇    下一篇

基本苗和行距对山农38小麦产量和光能利用的影响

庄文锋1, 翟军2, 刘超1, 李德正1, 孔令让1, 李安飞1, 杨猛1   

  1. 1 山东农业大学,小麦育种全国重点实验室,山东 泰安 271018
    2 济南市聚农农业科技有限公司,山东 济南 251400
  • 收稿日期:2023-05-23 出版日期:2023-12-28
  • 通讯作者:
    杨 猛(1982—),男,山东茌平人,副教授,博士,主要从事小麦栽培及推广研究。
  • 作者简介:

    庄文锋(1982—),女,山东即墨人,高级实验师,博士,主要从事小麦栽培与品质检测研究。

  • 基金资助:
    国家小麦产业技术体系(CARS-03-18)

Effects of Yield and Light Use of Basic Seedling and Row Spacing on Shannong 38

ZHUANG Wenfeng1, ZHAI Jun2, LIU Chao1, LI Dezheng1, KONG Lingrang1, LI Anfei1, YANG Meng1   

  1. 1 Shandong Agricultural University,National Key Laboratory of Wheat Breeding, Taian 271018, China
    2 Jinan Junong Agricultural Technology Co., Ltd, Jinan 251400,China
  • Received:2023-05-23 Published:2023-12-28

摘要:

为了完善新品种山农38栽培技术以便大面积推广,试验设置了5个基本苗和3个种植行距共15个处理,研究分析不同基本苗和行距对小麦产量形成、相关光合指标和辐射利用率的影响。结果表明:基本苗处理对各指标影响较大,差异显著,行距次之。225万株/hm2基本苗和23 cm行距在本试验条件下产量构成合理,获得高产。同一时期群体光合速率随着基本苗和行距的增加而增加,随生育期光合速率逐渐下降,基本苗和行距的加大使下降幅度降低。气孔导度和蒸腾速率变化规律一致,与胞间CO2浓度相反,随生育期呈现先增高后降低的趋势,随着基本苗的增加逐渐增加。Fv/Fm只有在B5高密度处理下明显降低,其他处理相差不大。有效辐射量和光辐射截获率随基本苗的增加而增加,随行距的增加而降低,高密度处理下的有效辐射量和光辐射截获率差异不显著,高密度处理下同一基本苗处理下的行距处理差异不显著。

关键词: 小麦, 产量, 光能利用, 基本苗, 行距

Abstract:

In order to perfect the cultivation technique of the new variety Shannong 38 for large-scale promotion.The experiment set a total of 15 processes that including 5 basic seedlings and 3 row spacing.This study analysed effects of yield,photosynthetic index and light use efficiency on wheat.The results showed that: the basic seedling treatment had great influence on each index,the difference was significant,the row spacing was next.The yield of 225×104 plants/ha basic seedlings and 23 cm row spacing was reasonable and high yield was obtained.In the same period,the population photosynthetic rate increased with the increase of basic seedlings and row spacing,and decreased gradually with the increase of basic seedlings and row spacing.GS was consistent with transpiration rate,and contrary to intercellular CO2 concentration.That with the growth period showed a first increase and then a decrease trend,with the increase of the basic seedlings gradually increased.Fv/Fm decreased significantly only in high density treatment of B5,and other treatments had no significant difference.The effective radiation amount and the interception rate of light radiation increased with the increase of basic seedlings and decreased with the increase of row spacing,there was no significant difference in effective radiation quantity and light interception rate under high density treatment,and no significant difference in row spacing treatment under high density treatment.

Key words: Wheat, Yield, Utilization of light, Basic seedling, Row spacing

引用本文

庄文锋, 翟军, 刘超, 李德正, 孔令让, 李安飞, 杨猛. 基本苗和行距对山农38小麦产量和光能利用的影响[J]. 华北农学报, 2023, 38(S1): 95-101. doi: 10.7668/hbnxb.20193245.

ZHUANG Wenfeng, ZHAI Jun, LIU Chao, LI Dezheng, KONG Lingrang, LI Anfei, YANG Meng. Effects of Yield and Light Use of Basic Seedling and Row Spacing on Shannong 38[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(S1): 95-101. doi: 10.7668/hbnxb.20193245.

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